- dovecot - dovecot.org

[Dovecot] Invalid password encoding
by Kenny Dail 04 Dec '06

04 Dec '06

ok so now I've got Dovecot 1.0rc15 started on the test server. however it seems that the auth-workers don't like their job: auth-worker(default): plain_md5_verify((null)): Invalid password encoding What do I need to do to make their life easier? Current dovecot.conf: protocols = imap imaps pop3 pop3s disable_plaintext_auth = no login_greeting = amigo.net ready. mail_location = maildir:%h/Maildir namespace private { separator = . prefix = INBOX. inbox = yes hidden = no } mail_extra_groups = mail mmap_disable = yes lock_method = dotlock first_valid_uid = 465 valid_chroot_dirs = /var/mail/virtual maildir_copy_with_hardlinks = yes protocol imap { mail_plugins = quota imap_quota trash login_greeting_capability = yes imap_client_workarounds = outlook-idle } protocol pop3 { pop3_uidl_format = %08Xu%08Xv mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol lda { postmaster_address = postmaster(a)amigo.net } auth_default_realm = amigo.net auth_username_translation = %@ auth_username_format = %Ln@%d auth_worker_max_count = 60 auth default { mechanisms = plain login apop digest-md5 cram-md5 passdb sql { args = /etc/dovecot/dovecot-sql.conf } userdb prefetch { } user = vmail count = 1 socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = postfix group = mail } client { path = /var/run/dovecot/auth-client mode = 0660 } } } plugin { quota = maildir trash = /etc/dovecot/dovecot-trash.conf } -- Kenny Dail <kend(a)amigo.net>

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[Dovecot] maildirsize update error
by Maykel Moya 04 Dec '06

04 Dec '06

According to [1], Trash is a reserverd folder name. When moving a message to it, maildirsize should be update with a negative byte count. If I move a message from any folder to Trash, maildirsize gets two lines, one positive and one negative. The problem is that a user can't move messages to Trash while being overquota because the positive entry goes before the negative. I'm using dovecot-1.0rc14. Regards maykel [1] http://www.inter7.com/courierimap/README.maildirquota.html

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[Dovecot] convert_mail ?
by Andrew Z 04 Dec '06

04 Dec '06

I can't find much documentation on the convert_mail plugin. For example, on the wiki plugins page, clicking on convert goes to <http://wiki.dovecot.org/InterWiki> which is not relevant. Can I use convert_mail to migrate from UW IMAP 2002 mbox format where some mail is in ~/ and the inboxes are in /var/spool/mail? Will it know which files are mbox folders, so it doesn't try to convert other files in the home directories? When are the e-mails converted? Are the old files deleted? Is this configuration snippet valid? default_mail_env = maildir:~/Maildir convert_mail = mbox:~/:INBOX=/var/mail/%u If I can do that, it seems like an easy change. Andrew

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[Dovecot] Performance Tuning Recommendations for Dovecot
by Jack Stewart 04 Dec '06

04 Dec '06

Hi, I'm wondering if anyone has some performance tuning recommendations for Dovecot. We are currently building a series of department e-mail/imap servers and we will be replacing our central core in the coming summer. The department servers are relatively small 100-200 users and the central server is modest - around 7000 accounts. They will be using local filesystem or SAN for the backend storage. So far, enabling hard links seems to be a big win. I'm curious if there are others out there that people have found useful. I am considering putting the indexes on memory disks but I haven't scoped out the requirements for the central system yet (i.e. it is unclear to me how large the index will be for approximately 13 million messages take take up roughly 800GB of disk space. Any pointers are greatly appreciated. Sincerely, ---Jack Stewart

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[Dovecot] assertion failed
by Richard Mayhew - Nashua Mobile Broadband Division 04 Dec '06

04 Dec '06

Hi, Would anyone know what these errors mean? Running DoveCot RC15 on RedHat ES 4 Dec 1 17:30:53 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:21 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:25 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:29 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:33 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:41 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:45 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:49 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Dec 1 17:31:53 serv-01 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Regards Richard

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[Dovecot] Deliver bounces messages if can't write to logs
by Francisco Reyes 04 Dec '06

04 Dec '06

I am new to using Dovecot's LDA deliver. One particular item which I think may be improved.. If one uses logs instead of syslog and if Dovecot/Deliver can't write to the logs, mail is bounced. In contrast if it can't connect to the authentication socket auth-master, it defers. Shouldn't mail be deferred if access to the log files fails due to rights? Doesn defer makes more sense than to bounce in this case? In all likelihood it was postfix that bounced/deferred, but I believe it has to do with what response postfix got from deliver.

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[Dovecot] Enabling different quota limits for different users for /etc/passwd as userdatabase on FC3
by ankush grover 04 Dec '06

04 Dec '06

hey friends, I am running my company's mail server on FC3 which comprises of Postfix + Dovecot + MailScanner + Clamav + Squirrelmail + MailWatch + Spamassassin. I am using Dovecot 0.99.13-3 version on FC3 and I want to implement Quota limits for the users. I am using userdatabase as /etc/passwd file (auth_userdb = passwd ) and password database as pam(auth_passdb = pam) for dovecot. I read the documentation of dovecot but the quota example for /etc/passwd is missing. I want to have different quota limits for different users for example Quota limitation will depend upon the users, well there will be a global quota limit which will takes place if there is no limit specified for that particular user. Can anybody guide me how to configure quota's for different users in dovecot for /etc/passwd as userdatabase and pam as password database. Please let me know if you need any further inputs. Thanks & Regards Ankush Grover

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[Dovecot] Protecting folders
by Hr. Daniel Mikkelsen 04 Dec '06

04 Dec '06

Hi. Is it possible to prevent certain folders from being deleted via IMAP using Dovecot? I don't want to write protect the folders, just prevent people from deleting their Junk, Trash, Drafts, etc. -- Daniel Mikkelsen Copyleft Software AS

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[Dovecot] / and . in folder names
by Magnus Holmgren 04 Dec '06

04 Dec '06

Right now, trying to create folders with "/" or "." in their name can yield strange results, because Dovecot simply turns every occurrence of the current folder hierarchy separator in a folder name given by the client into a "." (or so it seems). If the folder separator isn't ".", clients can try to create folders with names containing ".", and Dovecot will convert those "." back to the folder separator on listing. It will look like there is an intermediate folder, but Dovecot is unaware of it. If the folder separator isn't "/", clients can try to create folders with names containing "/", which will simply fail. Judging from to http://www.courier-mta.org/?maildir.html, Courier encodes "." and "/" in the names of the directories the folders are stored as on disk. This means that that of "." and "/" that isn't the folder separator can be used in folder names, but it also means that Dovecot has to be able to perform the recoding. Has any thought been given to this? -- Magnus Holmgren holmgren(a)lysator.liu.se (No Cc of list mail needed, thanks) "Exim is better at being younger, whereas sendmail is better for Scrabble (50 point bonus for clearing your rack)" -- Dave Evans

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Re: [Dovecot] Auth process died too early
by Ken Dail 04 Dec '06

04 Dec '06

> On Fri, 2006-12-01 at 16:40 -0700, Kenny Dail wrote: >> Hello all, >> Trying an Install of Dovecot 1.0rc15. We have previously used 1.0b8 >> without too many troubles. >> starting Dovecot 1.0rc15 yields: >> >> Dec 1 16:31:08 mailtest1 dovecot: Dovecot v1.0.rc15 starting up >> Dec 1 16:31:09 mailtest1 dovecot: pop3-login: Aborted login: >> rip=172.30.0.3, lip=172.30.0.30 >> Dec 1 16:31:09 mailtest1 dovecot: Auth process died too early - >> shutting down >> Dec 1 16:31:09 mailtest1 dovecot: auth(default): Socket already >> exists: /var/run/dovecot/auth-client > .. >> count = 10 > > Auth sockets are unfortunately incompatible with count > 1. Too large > change to fix before v1.0. I don't think it worked in beta8 either? That does appear to be the problem. However, as far as I can tell it is working on our beta8 machines with count = 10. Thanks! Kenny

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[Dovecot] Evolution: DATA command failed: Requested mail action aborted: exceeded storage allocation.
by Rob Frohne 03 Dec '06

03 Dec '06

Hi Everyone, I have been recently getting these errors in Evolution 2.6.1. I think it is a client issue, as I don't see them using Thunderbird on the same machine (though I get a lot of "disconnected from servers" from Thunderbird. On Evolution 2.8.1 on another machine I haven't noticed these issues. DATA command failed: Requested mail action aborted: exceeded storage allocation. It seems that it happens when my sent messages are attempted to be stored on my IMAP sent folder on the server (running dovecot 1rc15, and OS X. I can't find any hints in the mail.log on the server or the system.log on the server, or the system.log on the client. Any idea on how to troubleshoot this? Thanks, Rob -- Rob Frohne, Ph.D., P.E. E.F. Cross School of Engineering Walla Walla College 100 SW 4th Street College Place, WA 99324 (509) 529-3585 http://www.wwc.edu/~frohro/

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Re: [Dovecot] Unsolved : mbox-sync-rewrite.c : assertion failed
by Timo Sirainen 03 Dec '06

03 Dec '06

Looks like I broke keyword handling for mboxes in rc10, fix here: http://dovecot.org/list/dovecot-cvs/2006-October/006632.html

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[Dovecot] problem in rc15 (proxy mode)
by Laurent Papier 03 Dec '06

03 Dec '06

Hi, I have test dovecot on one of my pop3/imap proxies (from rc10 to rc15). I immediately get a lot of error messages like this one : Nov 27 15:10:45 mproxy1 dovecot: pop3-login: file client.c: line 423 (client_unref): assertion failed: (client->destroyed) Nov 27 15:10:45 mproxy1 dovecot: child 21677 (login) killed with signal 6 A lot means one every 2 or 3 seconds. Any suggestion ? ---------------- protocols = pop3 imap disable_plaintext_auth = no ssl_disable = yes login_process_size = 64 login_process_per_connection = no login_processes_count = 8 login_max_connections = 256 login_greeting = loktar auth_cache_size = 16384 auth_cache_ttl = 1800 auth_worker_max_count = 30 auth default { mechanisms = plain # Userdb settings are not used with proxy but there need to be something. userdb static { args = static uid=5000 gid=5000 home=/dev/null } passdb sql { args = /etc/dovecot-mysql.conf } user = root count = 1 } -- Laurent Papier - 03 88 75 80 50 Admin. système - SdV Plurimedia - <http://www.sdv.fr/>

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[Dovecot] Deliver Root Setuid
by Láďa 03 Dec '06

03 Dec '06

Hi, I just configured my Postfix installation to deliver via Dovecot LDA. But because I use separate uids for virtual domains I had to set deliver to be setuid root. Altough I find this as frequent answer to this problem with deliver LDA I am not a 100% sure - basically because I try to avoid root setuids as much as I can. What should be better solution - to have all mailboxes with one owner or this setuid binary? My main reason for separate uids was filesystem quotas for whole domain. But my mail partition resides on XFS so I can do the same with directory quotas and I also noticed changes in quotas which should be also per domain in some next release or with patch. Thanks for any advice and also thanks for all great work on Dovecot. Láďa

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[Dovecot] Too many open files
by bofh list 03 Dec '06

03 Dec '06

dovecot: Nov 08 04:04:23 Error: IMAP(user): open() failed with file mailstore/user/Maildir/.Alerts/dovecot.index.log.2: Too many open files dovecot: Nov 08 04:04:23 Error: IMAP(user): open(mailstore/user/Maildir/.Alerts/tmp/1162976663.P4853Q1817.server) failed: Too many open files dovecot: Nov 08 04:04:23 Error: IMAP(user): open() failed with file mailstore/user/Maildir/dovecot.index.tmp: Too many open files Seeing this with both 1.0beta9 and 1.0rc12 This occured when a user was not using the client, however the client(Thunderbird) filtering mechanism was active as their client is left on 24x7. Do we really need to increase individual user maxfiles to >1024 ? Dovecot is set to 31768 so it is definately the user process here. Anything I can tweak in dovecot.conf to prevent this? Thanks!

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[Dovecot] Dovecot hung or what?
by Odhiambo WASHINGTON 03 Dec '06

03 Dec '06

Here is my first major problem with dovecot. I am running rc15 on FreeBSD 6.1. I run dovecot supervised by DJB's daemontools. I run only the pop3 service. A colleague informed me that pop3 service was simply not responding. They could not rcv mail. When I checked the server, tail-ing dovecot.log, here is what was scrolling: [wash@nbi ~]$ tail -f /var/log/dovecot.log dovecot: Nov 23 18:04:11 Info: pop3-login: Disconnected: Inactivity: rip=196.200.37.94, lip=62.8.64.64 dovecot: Nov 23 18:04:11 Info: pop3-login: Disconnected: Inactivity: rip=196.200.42.212, lip=196.200.36.2 dovecot: Nov 23 18:04:12 Info: pop3-login: Disconnected: Inactivity: rip=196.200.35.130, lip=62.8.64.64 dovecot: Nov 23 18:04:13 Info: pop3-login: Disconnected: Inactivity: rip=168.144.108.27, lip=62.8.64.64 dovecot: Nov 23 18:04:14 Info: pop3-login: Disconnected: Inactivity: rip=168.144.108.8, lip=62.8.64.64 dovecot: Nov 23 18:04:17 Info: pop3-login: Disconnected: Inactivity: rip=196.200.39.169, lip=62.8.64.64 dovecot: Nov 23 18:04:17 Info: pop3-login: Disconnected: Inactivity: rip=41.220.126.2, lip=196.200.38.2 dovecot: Nov 23 18:04:17 Info: pop3-login: Disconnected: Inactivity: rip=196.200.39.169, lip=62.8.64.64 dovecot: Nov 23 18:04:18 Info: pop3-login: Disconnected: Inactivity: rip=196.200.37.174, lip=62.8.64.64 dovecot: Nov 23 18:04:19 Info: pop3-login: Disconnected: Inactivity: rip=196.216.68.230, lip=62.8.64.64 dovecot: Nov 23 18:04:22 Info: pop3-login: Disconnected: Inactivity: rip=196.200.45.54, lip=62.8.64.64 dovecot: Nov 23 18:04:26 Info: pop3-login: Disconnected: Inactivity: rip=196.200.35.130, lip=62.8.64.64 dovecot: Nov 23 18:04:27 Info: pop3-login: Disconnected: Inactivity: rip=196.200.45.54, lip=62.8.64.64 dovecot: Nov 23 18:04:28 Info: pop3-login: Disconnected: Inactivity: rip=41.220.126.2, lip=62.8.64.64 dovecot: Nov 23 18:04:28 Info: pop3-login: Disconnected: Inactivity: rip=196.207.23.28, lip=62.8.64.64 dovecot: Nov 23 18:04:31 Info: pop3-login: Disconnected: Inactivity: rip=82.109.38.129, lip=62.8.64.64 dovecot: Nov 23 18:04:32 Info: pop3-login: Disconnected: Inactivity: rip=41.222.12.121, lip=196.200.36.2 ^C [wash@nbi ~]$ su Password: nbi# sh /usr/local/etc/rc.d/svscan.sh stop Stopping svscan. nbi# sh /usr/local/etc/rc.d/svscan.sh start Starting svscan. I then restarted the service .... nbi# nbi# tail -f /var/log/dovecot.log dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down: rip=196.200.37.126, lip=62.8.64.64 dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down: rip=196.200.39.74, lip=62.8.64.64 dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down: rip=196.200.35.146, lip=62.8.64.64 dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down: rip=196.200.37.42, lip=62.8.64.64 dovecot: Nov 23 18:04:47 Info: pop3-login: Disconnected: Shutting down: rip=196.200.46.122, lip=62.8.64.64 dovecot: Nov 23 18:04:50 Info: Dovecot v1.0.rc15 starting up After this, dovecot was now answering as expected. 1. What could the problem be? 2. How can I reproduce it. PS: This has never happened ever since with the previous versions. -Wash http://www.netmeister.org/news/learn2quote.html DISCLAIMER: See http://www.wananchi.com/bms/terms.php -- +======================================================================+ |\ _,,,---,,_ | Odhiambo Washington <wash(a)wananchi.com> Zzz /,`.-'`' -. ;-;;,_ | Wananchi Online Ltd. www.wananchi.com |,4- ) )-,_. ,\ ( `'-'| Tel: +254 20 313985-9 +254 20 313922 '---''(_/--' `-'\_) | GSM: +254 722 743223 +254 733 744121 +======================================================================+ It's lucky you're going so slowly, because you're going in the wrong direction.

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[Dovecot] UIDs broken with partial sync in mbox
by illicoweb, eric 03 Dec '06

03 Dec '06

Hi all, I have some trouble: multiple copies of mail and error messages: IMAP(contact): UIDs broken with partial sync in mbox file /var/mail/contact Fedora core 5 x86 - dovecot-1.0-0.beta8.2.fc5 Can you help me ? -- thanks, Eric ____________________________________________ Cet email a ete verifie par ILLICOWEB Anti-virus Clamav / Anti-Spam Spamassassin

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[Dovecot] Pop3 migration (was Status of commercial support?)
by Francisco Reyes 03 Dec '06

03 Dec '06

Odhiambo WASHINGTON writes: > | Courier 4 POP migration to dovecot. > > This should be very easy, I think. > Once you know the uidl format used by Courier 4 POP. The migration is Courier 4 to Dovecot using Maildir format. I used some scripts I found on the net and adapted them. I got everything to come over (ie imap subscriptions), except POP3 UIDs. My Courier POP3-uid files look like: /2 19 1164413643 <message file name>,S=28985:2,S 29648 10:1164413643 <message file name>,S=5913:2,S 6042 11:1164413643 <message file name>,S=5121:2, 5236 12:1164413643 <message file name>,S=5257:2, 5373 13:1164413643 <message file name>,S=5106:2, 5215 14:1164413643 <message file name>,S=5618:2, 5745 15:1164413643 <message file name>,S=30619:2, 31353 16:1164413643 <message file name>,S=34785:2, 35609 17:1164413643 <message file name>,S=6695:2, 6852 18:1164413643 My pop3_uidl_format is pop3_uidl_format = %08Xu%08Xv Looking at what Dovecot generates on a brand new pop account the files look like: 1 1164413643 29 10 <message file name> 11 <message file name> 12 <message file name> 13 <message file name> ... and more with the same format... So I write an AWK script which creates the proper first line and gets for each line the message ID and message file name. Yet after I do the conversion and run a pop3 client against the migrated pop account, old mails are re-downloaded.

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[Dovecot] cache_key assertion error 1.0.beta8
by Frank Cusack 03 Dec '06

03 Dec '06

I just added auth caching with pam, and I'm getting this error: dovecot: [ID 107833 mail.error] auth(default): file passdb.c: line 178 (passdb_init): assertion failed: (passdb->passdb->default_pass_scheme != NULL || passdb->passdb->cache_key == NULL) A google search turns up <http://www.dovecot.org/list/dovecot-cvs/2005-March/004117.html> which looks approx like this except the assertion above is in passdb.c. Anyway, is this a known problem in 1.0.beta8? I've been reluctant to upgrade to the rc's due to all the problems. -frank

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[Dovecot] Indexing transfered mails?
by Francisco Reyes 03 Dec '06

03 Dec '06

Going to be transfering a number of domains from a Courier setup to Dovecot. Is there a way to get Dovecot to index the files before the users access their accounts?

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[Dovecot] Status of commercial support?
by Francisco Reyes 03 Dec '06

03 Dec '06

Was going over the archives looking for any info on commercial support. Only found some emails back from 2005. Is there commercial support available? If not, any consultants that could help with an installation. In particular Courier 4 POP migration to dovecot.

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[Dovecot] assertion failed: (fd >= 0)
by Jos Chrispijn 03 Dec '06

03 Dec '06

After I activated disabling POP3 for one of my users (not user 'jos'), the following is in my logfile: Dec 3 16:03:33 webrz dovecot: IMAP(jos): Disconnected Dec 3 16:03:36 webrz dovecot: IMAP(jos): Disconnected in IDLE Dec 3 16:03:36 webrz dovecot: IMAP(jos): file ioloop.c: line 22 (io_add): assertion failed: (fd >= 0) Dec 3 16:03:36 webrz dovecot: child 74197 (imap) killed with signal 6 Can someone tell me what is going wrong? Have a deny.imap file with no users in it and a deny.pop3 file with one user in it... Jos

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[Dovecot] [IDEA] Shared Folders via LDAP Lookups
by Gavin Henry 03 Dec '06

03 Dec '06

Hi All, We've been thinking a lot about the 2 different ways dovecot implements shares; namespaces and symlinks. We currently use the symlink version for our clients and they use the create_dovecot_shares.pl tool we did at: http://dovecot.org/tools/ Our idea is either in the namespace declaration or if a folder has a dovecot-shared file/symlink, have a ldap lookup defined in say, dovecot-ldap-shares.conf or dovecot-ldap.conf, that queries a dn and looks for memberUID or a group dn, then those uids/groups can get into the IMAP maildir. Obviously the original folder would need to be owned by some predefined user, e.g dovecot etc. Then it's just a simple matter of adding a new memberUID/group to the share listing. We can do a custom dovecot.schema if needed (for say a dovecotShare attribute etc.), as long as we get dovecot a Private Enterprise Number from: http://www.iana.org/cgi-bin/enterprise.pl If Timo hasn't already got one, but I can't see one in: http://www.iana.org/assignments/enterprise-numbers Thoughts? -- Kind Regards, Gavin Henry. Managing Director. T +44 (0) 1224 279484 M +44 (0) 7930 323266 F +44 (0) 1224 824887 E ghenry(a)suretecsystems.com Open Source. Open Solutions(tm). http://www.suretecsystems.com/

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Re: [Dovecot] assertion failed: (fd >= 0)
by Jos Chrispijn 03 Dec '06

03 Dec '06

Saw some messages before that Time wrote that the problem might be in the Dovecot.conf. What I changes was this: -- cut -- auth default { mechanisms = plain passdb passwd-file { args = /letc/deny.%Ls deny = yes } passdb pam { } userdb passwd { } user = root } -- cut -- Did I forget a '{' somewhere? "Jos Chrispijn" wrote in message news:<4572E96B.3030401(a)webrz.net>... > After I activated disabling POP3 for one of my users (not user 'jos'), > the following is in my logfile: > > Dec 3 16:03:33 webrz dovecot: IMAP(jos): Disconnected > Dec 3 16:03:36 webrz dovecot: IMAP(jos): Disconnected in IDLE > Dec 3 16:03:36 webrz dovecot: IMAP(jos): file ioloop.c: line 22 > (io_add): assertion failed: (fd >= 0) > Dec 3 16:03:36 webrz dovecot: child 74197 (imap) killed with signal 6 > > Can someone tell me what is going wrong? > Have a deny.imap file with no users in it and a deny.pop3 file with one > user in it... > > Jos >

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[Dovecot] POP3 protection
by Jos Chrispijn 03 Dec '06

03 Dec '06

I have some users that I will not allow to use POP3 thru my system, but force them to use webmail. Would it be possible to put an extra option in dovecot.conf to force this: # ----------------------------------------------------------------- # Logon processes # user = <username>,<password> # ----------------------------------------------------------------- user = johndoe,another_secret_password user = mike,trouble_in_paradise If unix user johndoe logs on, he cannot fetch mail thru POP3 for he has a differect password from his logon password. thanx for listening, Jos

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